| 摘要 |
The electric shock-preventing control device in instruments employing electricity for medical treatment according to the present invention comprises a start-up circuit (5), which is connected to a output current slow control circuit (6), which is in turn connected to a control deviation amplifier (8) being connected to the output current stabilizer (7) with a delay element and a change-over switch of both the instrument idle and operating mode. In order to prevent an electric shock in an instrument employing electricity for medical treatment, there must be satisfied the following conditions between a time delay {tau}ireg of output current from a controller block (4), a time{tau}ioff for quick switching of the instrument from the operating mode to idle mode, and a time{tau}irun of a slow control of the output current amplitude setting: {tau}ireg > {tau}ioff; {tau}ireg << {tau}irun. |
